Find the rule first, then fill in the number 2 / 1 / 4 / 3 1 / 8 1 / 16 11 ()（ It has to be done now. It's better to have a process, hehe

RELATED INFORMATIONS

• 1. (1) 1 / 16,1 / 8,3 / 16,1 / 4, (), () (2) 1,3,4,7,11, (), (), 47 （3）8,4,2,1,1/2,1/4,（）,（）
• 2. Find the rules (1) 1,1,1,3,3,5, (), 11 (2) 7,7,16,42107, () (3) 1,2,3,1,4,4,7, (), 6
• 3. Find rules 7, 8, 10, - 22, 38
• 4. 2 + 3 + 4 + 5 +. + 48 + 49 + 50 = how to find the law,
• 5. 1 * 2 * 3 / 1 + 2 * 3 * 4 / 1 + 3 * 4 * 5 / 1 +. 48 * 49 * 50 / 1 simple algorithm you just calculated a problem for me, help me
• 6. Find the rule 1 + 2 + 3 +. 49 + 50 + 49 +. 3 + 2 + 1=
• 7. Calculate and fill in the blanks 1=1 1+3=4 1+3+5=9 1+3+5+7=16 1+3+5+7+9=25······ 1. Carefully observe the above operations and results, and write the nth equation 2. According to the law: 1 + 3 + 5 + 7 + 9 + ··· + 2013
• 8. Find the rule and fill in the following: 1. 2 × 6 = 12, 3 × 8 = () 48 ／ 8 = () ②：12÷4＝3 （）÷4＝（） （）×5＝（） ③：2×6÷4＝（） （）○（）○（）＝（） （）○（）○（）＝（） Note: () fill in the number ﹣ fill in × and ﹣ in If you write correctly, you will get higher marks
• 9. In a column of numbers 2,7,14,23. What is the 15th number
• 10. There is a column of numbers, 2, 5, 8, 11, 14 Then 104 is the () th number in this column A. 33B. 32C. 34D. 35
• 11. What is the law of calculating 2 * 22 * 22 222 * 222 2222 * 2222?
• 12. 2+2+2-2+22-222-2+2222
• 13. What is the sum of the first n terms of the sequence {n * (n + 2)}? Talk more about ideas,
• 14. s=2+22+222+2222+…… +2222…… How to calculate the sum of 2222 (N 2's),
• 15. Sum of sequence: 2 + 22 + 222 + +22… 222 (N 2) an=2/9(10^n-1) The answer is Sn = [20 * (10 ^ n-1)] / 81-2 / 9N I want to ask Sn how the answer comes out
• 16. Please help me. Number 1.0.3.4.13.12.39 The general term formula of If possible, please write the derivation
• 17. 2 + 22 + 222 + 2222 + ellipsis + 222
• 18. How to express the general term formula of 2,222?
• 19. General term formula of sequence 4,13,40121 4.13.40.121 . I know that each term is the first term * 3 + 1, but I want the general term formula not the recursive formula
• 20. What is the general term formula of sequence 1,4,13,40121 Such as the title